Spiny Egg

Spiny Eggs, originally known as Spiny's eggs, are the projectiles thrown by Lakitus. Spiny Eggs are small, usually red balls covered in spikes. Once they touch the ground, they turn into normal Spinies. Despite its name, a Spiny Egg would appear to not be an egg at all; it seems to simply be a Spiny rolled up into a ball. While in this state, they can be defeated when touched by a Star, burned by Fire Mario's fireballs, attacked by Raccoon Mario's or Tanooki Mario's Tail attack, etc.

Spiny Eggs debuted in the original Super Mario Bros., and Super Mario Bros. 3 introduced a green Spiny Egg, which never hatched, but only rolled around on the ground. In New Super Mario Bros., it is revealed that a Spiny will turn back into a Spiny Egg at will when they touch water, and can float on the surface. In Super Mario Galaxy 2, Yoshi can turn Spinies back to their original form, as well as swallow Spiny Eggs and spit them back out, which can be used as projectiles to hurt enemies or break glass containers.

Some Spiny Eggs, presumably transported to Dark Land by Wendy O. Koopa (who needs them for use in a potion) appear in Koopa Capers. While exploring a Fortress, Luigi finds a room filled with the eggs and some Ptooie, but he manages to evade them while wondering what they are doing in a dank fortress chamber, instead of being outside.

Derived from a well-known Japanese folktale called Jugemu, about a boy with an absurdly long name beginning with "Jugemu", which is where Lakitu's name comes from; "Paipo" is one of the later parts of the name.